Both of you are lumping all Chinese people together as a monolith. Let's put it this way.

If you come to my house and beat me up and loot my stuff, and then burn most of my house down, but I survive, and then a mob of poor people came by and then destroyed other artifacts in my house, do the actions of the mob of poor people absolve you, the original looter?

Does it complicate or simplify things if you, the original looter, also sold opium to the mob of poor people?